History, 23.05.2020 07:57 NikkyZ9487
Rachel is given 50 grams each of three different white powders that look very similar. She is told that each of these powders is
commonly used in cooking. Without tasting any of them, she is asked to try to identify them. She is told the amounts of sugar and
salt that can each be dissolved in 100 mL of water
Substance
Solubility
(g per 100 mL water)
table sugar
211
table salt
36
flour
not soluble
Rachel adds all 50 grams of one powder to 100 mL of water and stirs it for a while. Afterwards, she has a clear liquid with some
powder on the bottom
Which of the following could this powder have been?
A. salt
B. flour
C. sugar
Answers: 2
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